Formation features of adiabatic shear bands during hot compression of VTI-4 alloy and subsequent annealing

Zavodov A.V., Medvedev P.N., Nochovnaya N.A.
UDC
669.017.165:669.295
DOI
10.18577/2307-6046-2020-0-12-14-22
Article PDF (Russian) (1.22 MB)
How to cite
Zavodov A.V., Medvedev P.N., Nochovnaya N.A. Formation features of adiabatic shear bands during hot compression of VTI-4 alloy and subsequent annealing // Proceedings of VIAM. 2020. No. 12. DOI: 10.18577/2307-6046-2020-0-12-14-22. URL: https://test.viam.ru/en/journal/2020/12/2
Keywords
Ti–22Al–25Nb, Ti2AlNb, hot compression, alloy VTI-4, localized deformation bands, adiabatic shear bands.
Abstract

Textural and macrostructural changes in the intermetallic titanium alloy VTI-4 based on the orthorhombic phase (Ti2AlNb) during hot high-rate compression and subsequent recrystallization annealing where studied. The main attention is paid to the formation features of localized deformation bands (LDB) in the central zone of the compressed sample, which are one of the signs of unstable and nonuniform deformation. It is shown that recrystallization annealing after hot compression does not eliminate the LDB and the compression texture. Reasons for this behavior of the material are studied applying the analysis of the solid solution state.

Reference list
  1. Banerjee D., Gogia A.K., Nandi T.K., Joshi V.A. A new ordered orthorhombic phase in a Ti3Al–Nb alloy. Acta Metallurgica, 1988, vol. 36, no. 4, pp. 871–882.
  2. Kablov E.N., Bakradze M.M., Gromov V.I., Voznesenskaya N.M., Yakusheva N.A. New high strength structural and corrosion-resistant steels for aerospace equipment developed by FSUE «VIAM» (review). Aviacionnye materialy i tehnologii, 2020, no. 1 (58), pp. 3–11. DOI: 10.18577 / 2071-9140-2020-0-1-3-11.
  3. Dzunovich D.A., Alekseyev E.B., Panin P.V., Lukina E.A., Novak A.V. Structure and properties of sheet semi-finished products from various wrought intermetallic titanium alloys. Aviacionnye materialy i tehnologii, 2018, no. 2 (51), pp. 17–25. DOI: 10.18577/2071-9140-2018-0-2-17-25.
  4. Kablov E.N., Kashapov O.S., Medvedev P.N., Pavlova T.V. Study of a α+β-titanium alloy based on a system of Ti–Al–Sn–Zr–Si–β-stabilizing alloying elements. Aviacionnye materialy i tehnologii, 2020, no. 1 (58), pp. 30–37. DOI: 10.18577/2071-9140-2020-0-1-30-37.
  5. Putyrskiy S.V., Yakovlev A.L., Nochovnaya N.A., Krokhina V.A. Research of different heat treatment modes influence on properties of semi-finished products and welded joints from titanium alloy ВТ22М. Aviacionnye materialy i tehnologii, 2019, no. 1 (54), pp. 3–10. DOI: 10.18577/2071-9140-2019-0-1-3-10.
  6. Kablov E.N., Nochovnaya N.A., Shiryaev A.A., Davydova E.A. Investigation of structural and phase transformations in metastable β-titanium alloys and effect of cooling rate from homogenization temperature on structure and properties of VT47 alloy. Part 1. Trudy VIAM, 2020, no. 6–7 (89), paper no. 01. Available at: http://www.viam-works.ru (accessed: October 10, 2020). DOI: 10.18577/2307-6046-2020-67-3-10.
  7. Baeslack W.A., Broderick T. Effect of cooling rate on the structure and hardness of a Ti–26 at. % Al–10 at. % Nb–3 at. % V–1 at. % Mo Titanium Aluminide. Scripta Metallurgica et Materialia, 1990, vol. 24, pp. 319–324.
  8. Huang Y., Liu Y., Li C. et al. Microstructure evolution and phase transformations in Ti–22Al–25Nb alloys tailored by super-transus solution treatment. Vacuum, 2019, vol. 161, pp. 209–219.
  9. Wright T.W. The physics and mathematics of adiabatic shear bands. Cambridge: University Press, 2002, 240 p.
  10. Yang J., Wang G., Jiao X., Li X., Yang C. Hot deformation behavior and microstructural evolution of Ti–22Al–25Nb–1,0B alloy prepared by elemental powder metallurgy. Journal of Alloys and Compounds, 2016, vol. 695, pp. 1038–1044.
  11. Bobbili R., Madhu V. Physically-based constitutive model for flow behavior of a Ti–22Al–25Nb alloy at high strain rates. Journal of Alloys and Compounds, 2018, vol. 762, pp. 842–848.
  12. Li A.B., Huang L.J., Meng Q.Y. et al. Hot working of Ti–6Al–3Mo–2Zr–0,3Si alloy with lamellar α+β starting structure using processing map. Materials and Design, 2009, vol. 30, pp. 1625–1631.
  13. Khomskaya I.V., Zeldovich V.I., Kheifets A.E., Litvinov B.V. Effects of strain localization and mass transfer in converging shock waves. Izvestiya RAN, ser.: Physical. 2012, vol. 76, no. 11, pp. 1364–1369.
  14. Belikova A.F., Buravova S.N., Petrov E.V. Localization of deformation under dynamic loads. Zhurnal tekhnicheskoy fiziki, 2013, vol. 83. 8, pp. 68–75.
  15. Belikova A.F., Buravova S.N., Gordopolov Yu.A., Saykov I.V. The nature of the formation of localized deformation bands under dynamic loads. Vestnik TGU, 2010, vol. 15, is. 3, pp. 908–909.
  16. He L., Su H., Xu J., Zhang L. Study on dynamic chip formation mechanisms of Ti2AlNb intermetallic alloy. The International Journal of Advanced Manufacturing Technology, 2017, vol. 92, pp. 4415–4428.
  17. Jo M.C., Kim S., Suh D.W. et al. Effect of tempering conditions on adiabatic shear banding during dynamic compression and ballistic impact tests of ultra-high-strength armor steel. Materials Science & Engineering A, 2020, vol. 792, art. 139818.
  18. Lin P., Tang T., Chi C. et al. Dynamic globularization behavior of O-phase lamellae in Ti–22Al–25Nb (at. %) alloy during deformation at elevated temperatures. Rare Metal Materials and Engineering, 2018, vol. 47 (2), pp. 416–422.
  19. Yang J., Wang G., Jiao X. et al. High-temperature deformation behavior of the extruded Ti–22Al–25Nb alloy fabricated by powder metallurgy. Materials Characterization, 2018, vol. 137, pp. 170–179.
  20. Okhrimenko Ya.M., Tyurin V.A. Theory of forging processes: textbook. manual for universities. Moscow: Higher school, 1977, 295 p.
  21. Avtaev V.V., Grinevich D.V., Zavodov A.V. Simulation of hot upsetting of intermetallic titanium alloy VTI-4 under high-speed loading. Materialovedenie, 2020, no. 12, pp. 10–16.
  22. Krawczynska A.T., Gierlotka S., Suchecki P. et al. Recrystallization and grain growth of a nano/ultrafine structured austenitic stainless steel during annealing under high hydrostatic pressure. Journal of Materials Science, 2018, vol. 53, pp. 11823–11836.
  23. Vishnyakov Ya.D. The theory of texture formation in metals and alloys. Moscow: Nauka, 1979, 343 p.